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D.15.23.33 part

Procedure from library schubert.lib (see schubert_lib).

Usage:
part(f,n); f poly, n int

Return:
poly

Purpose:
computing the homogeneous component of a polynomial.

Example:
 
LIB "schubert.lib";
ring r = 0,(x,y,z),wp(1,2,3);
poly f = 1+x+x2+x3+x4+y+y2+y3+z+z2+xy+xz+yz+xyz;
part(f,0);
==> 1
part(f,1);
==> x
part(f,2);
==> x2+y
part(f,3);
==> x3+xy+z
part(f,4);
==> x4+y2+xz
part(f,5);
==> yz
part(f,6);
==> y3+xyz+z2


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